Skyspace...

I had no idea what to expect when we walked down a sloping walkway under a man-made hill into Within Without, a Skyspace by American artist James Turrell.

 Inside there was a surreal turquoise pool of water...

...and a dome made of basalt, which housed the Skyspace—a viewing chamber designed to affect the way visitors see the sky.

Inside the dome was the viewing chamber, open to the sky.

It was pretty spectcular.